Mike1962 wrote
It also says " The SmartFlex supports real time data encryption and the creation of VPN tunnels using IPsec, OpenVPN and L2TP"
The first thing you must do is read the router manual and learn howto setup openvpn there.
Openvpn does not support IPSec or L2TP.
Then you will need to read the OpenVPN Howto:
HOWTO: For OpenVPN Community Edition
And then have a go at setting up Openvpn.
If it is all too much then you can contact me privately: tincanteksup <at> gmail.
This may also help
HOWTO: Request Help ! {2}